baber/WOPTO huggingface dataset:
Patent GB-1220243-A (GB)
Title: Improvements in or relating to clutch brake drive arrangements
Inventor: BECKER ERNST
IPC: F16D67/06
Filed: 1968-05-01
Abstract: 1,220,243. Variable-speed transmissions. E. BECKER and K. NOTZ. 1 May, 1968 [6 May, 1967], No. 20731/68. Headings F2D and F2L. Transmissions for a sewing or other machine providing a normal speed, slow speed and braking of the output shaft, are generally similar to those described in Specification 962,506 but have the input member of the auxiliary clutch/ brake unit of the slow speed drive driven at a speed greater than that of the main input shaft. As shown an electric motor 1 drives a flywheel 2 clutchable to an output shaft 6 by an electromagnetic clutch 10 for normal drive. A clutch disc 11 on the output shaft 6 is engageable with a plate 30 which can be stationed or driven at slow speed by step-down belt 43 or worm and worm-wheel gearing from a shaft 38. An auxiliary electromagnetic clutch/brake unit 37 has an input member 35, 36 driven at a greater speed than that of the flywheel 2 either by way of step-up belt gearing 34 from the flywheel, or by way of an auxiliary motor. The high reduction ratio between the shafts 38, 6 permits the output shaft to be stopped rapidly by a relatively weak but highly responsive brake. To stop the output shaft in a prescribed angular position the auxiliary clutch/brake is controlled by a circuit such as is described in Specification 956,720. Specification 1,220,242 is also referred to.
Patent GB-202645-A (GB)
Title: Motor mechanism in electricity meters
IPC: G01R11/36
Filed: 1923-08-16
Abstract: 202,645. Landis & Gyr Akt.-Ges. Aug. 18, 1922, [Convention date]. Induction motor meters.- A portion 2 of the laminae composing the pressure magnet 1 project downwards beyond the remainder and have a projecting portion 3 forming the opposing pole. These projecting laminae 2 may be disposed in the central plane of the pressure magnet, lugs 5 having bent-out extensions 7 to carry the main current magnet being secured on each side of the laminae 2 by rivets 6. Alternatively the lugs 5 may be arranged in the central plane between two sets of projecting laminae. The outer ends of the projections forming the pole 3 are held together by a rivet 4.
Patent GB-963656-A (GB)
Title: Wide dynamic range amplifier system
IPC: G01S7/00
Filed: 1962-05-30
Abstract: 963,656. Electric analogue computers. BENDIX CORPORATION. May 30, 1962 [June 7, 1961], No. 20869/62. Heading G4C. [Also in Division H4]. In a radar receiver of the type comprising a wide dynamic range detector 13, and a cascade of video stages 15-19 which successively saturate each of which is coupled through an adder 21 to the output circuit, a noise sensitive detector 28 is arranged in each of the parallel paths to the adder so that when the preceding video stage saturates the noise causes the corresponding path to the adder to be interrupted. By this means the detection threshold can be varied by the noise level so that the number of false pulses due to noise is independent of the noise level. In Fig. 1 the output of the detector 13 feeds firstly a fast time constant circuit 14 and each of the amplifier channels includes an amplifier controlled by a fast time constant circuit 31 which removes the D.C. component and distortion due to integration in the noise sensitive detectors. The I.F. input signal is applied to an input terminal 11 (Fig. 2) through an amplifier stage 33 to a class B detector 35 feeding a filter circuit 42. The output from the filter is fed through an emitter follower 43 (Fig. 3) to a fast time constant circuit 40 (Fig. 2) connected to an amplifier 44 feeding the first video stage 45, 46. Part of the output of stage 46 is fed to a rectifying circuit 47, 48 corresponding to 28 of Fig. 1 biased at 49 and the output of this rectifier is fed through amplifier 52 to a differentiating circuit comprising capacitor 55 and rectifier 56. The output from this stage is fed via a common line 81 to a combining stage 82 (Fig. 3) feeding output amplifiers 84 and 85. Part of the output from the first video amplifier stage 46 is also fed to the second stage 61, 67 which feeds in cascade stages 68, 71 (Fig. 3) 72, 74, 76 (Fig. 4) and 77. Each of these stages feed an individual stage 23, 24, 25, 26 and 27 similar to stage 22 and having their outputs connected via common line 81 to the combining amplifier 82. The rectifiers at the input of each of the stages 22-27 is so arranged that when the noise output from the preceding video amplifier stage is such that the stage is saturated. The output from the rectifier is sufficient to bias off the corresponding valve 52 so that noise is not passed through this stage to the output circuit. Negative D.C. feedback is applied from the last video amplifier stage 77 (Fig. 4) through resistor 65 and resistor 64 (Fig. 2) to stage 61 of the video amplifier system. The separate output channels to the adder may also be arranged to compensate for non-linearity in the common detector. Specification 943,819 is referred to.
Patent GB-1534819-A (GB)
Title: Tunable magnetron
IPC: H01J23/20
Filed: 1977-05-18
Abstract: 1534819 Magnetrons PHILIPS GLOEILAMPENFABRIEKEN NV 18 May 1977 [21 May 1976] 20874/77 Heading H1D A multicavity magnetron combines a rotatable high frequency tuning member at one end of the anode plates and an axially displaceable tuning member at the other end for adjusting the tuning range. As shown, the strapped anode plates 22 projecting inwardly from the anode block 20 have slots 31 formed at one end near the anode block, or, as shown, between the anode block and the plates, to define a continuous slot in which a sleeve-like member 30, having a varying quantity of conductive material along its circumference, can be rotated, the axially displaceable member 35 having conductive teeth 36 which project into the resonant cavities. A thin ring 47 separates the two tuning members when member 35, in its fully inserted position, overlaps member 30. By suitable choice of the shape and material of the two tuning members, the variation of frequency with temperature may be compensated.
Patent GB-983204-A (GB)
Title: A process for the neutralisation of calcium sulphate containing hydrofluoric acid and sulphuric acid
IPC: C04B11/28
Filed: 1963-05-24
Abstract: CaSO4 containing HF and H2SO4 is neutralized by adding calcium aluminate, silicate, or aluminosilicate (e.g. blast furnace or coal power station slag, fly ash, trass, or feldspar) followed by CaO and/or Ca(OH)2.  The CaSO4 is a by-product in the production of HF from CaF2 and H2SO4.  The materials are reacted in finely-ground form, e.g. at least 90% less than 90m  in diameter.  Preferred proportions are 70-95% CaSO4, 4.5-29.5% first additives and 0.5-2% second additives.  Small amounts of K2SO4 or FeSO4 may be added to accelerate setting speed.  The products can be used as hydraulic binders, drying agents, and fillers.  The following are said to be formed in situ, and impart strength or hardness to the set product: CaSO4, Al2(SO4)3, CaF2, SiO2.x H2O, Casilicate, and Ca aluminate.
Patent GB-614300-A (GB)
Title: Method and apparatus for closing cartons
IPC: B65B7/26
Filed: 1946-07-12
Abstract: 614,300. Boxes; packing. DEHN, S. G.'(Waldorf Paper Products Co.). July 12, 1946, No. 20936. [Classes 18 and 94 (i)] [Also in Group XXX] In a machine for closing the cover of a preformed and fiiled carton A, the carton is brought to the machine on a conveyor 25 and delivered on to a table 31 from which it is transferred to a table 43 by a plunger 29 having a reciprocating vertical and horizontal movement. The carton when on the table 43 is carried forward by chain driven spaced arms 45, the front faces SO of which engage the carton cover 13 in the vicinity of the folds joining the flaps 14 and 21 to the cover and urge the cover through a frame 51, the aperture of which is slightly larger than the cover 13. The cross arms of the frame project in front of the uprights so that the flap 14 is folded at rght angles ito the cover before the flaps 21. Next the upstanding tabs 19 are folded over the contents of the carton by clips 67 carried on spring loaded bell crank levers 62 mounted in recesses 61 in the guides 59, 60. The carton is urged forward.clear from the arms 45 by an arcuate guiding horn moving faster than the arms 45. The centre of curvature of the arcuate underface of the horn coincides with the fold joining the cover to the end wall so that as the guide rails 69 force the cover down the end wall is not forced out of the vertical and the flaps can be guided into the appropriate recesses in the side walls by suitable chamfers being formed on the guides 59, 60 and the horn 72. The closed carton is discharged down an inclined ramp. A blank for the carton comprises a base 10, walls 11, 12 and 16 and a cover 13, the walls 11, 12 having formed thereon locking flaps 17, 20 respectively which, when the box is shaped, enter slots 29. The cover carries flaps 14 and 21 which engage the slots 75 and 24 in the walls 11 and 16, whilst ears 19 are provided on the flaps 17 and can be folded over the contents. A lining 13 is pasted over the blank before it is bent along the fold lines 15, 22.
Patent GB-622743-A (GB)
Title: Improvements in or relating to the production of poly (methylene-amide)resinous condensation products
IPC: C08G12/22
Filed: 1946-07-12
Abstract: A process for the production of poly-(methylene hydroxy-amide) resinous condensation products comprises hydrolysing an a -hydroxy nitrile in the liquid phase with an aqueous acid solution at a pH below 7 in the presence of formaldehyde or a polymer thereof.  The hydrolysis produces first the a -hydroxy amide which reacts with formaldehyde to form the methylol compound, which then polymerizes with loss of water.  The process is applicable to cyanhydrins of aldehydes and ketones such as acetone, formaldehyde, butyraldehyde, or propion-aldehyde.  Using an excess of formaldehyde, the product may be modified by inclusion of a phenolic or a urea or melamine compound or an amide in the reaction mixture.  The resinous product may be partially esterified with an organic acid such as phthalic, linoleic, adipic, or benzoic acids or their anhydrides.  In examples: (1) a potassium cyanide solution is added to a cooled solution of formaldehyde and potassium metabisulphite, and the solutions after standing and addition of sulphuric acid to bring the pH to 4 is heated to 100 DEG  C. and then vacuum distilled.  It may be heated at 120-160 DEG  C. with benzoic, cinnamic, linoleic, maleic, sebacic and adipic acids or phthalic, maleic or succinic anhydrides, forming a nonhygroscopic product; (2) the process of (1) is repeated using propionaldehyde, the cyanhydrin of which is formed before adding formaldehyde; (3) the process of (2) is repeated using butyraldehyde, and heating to form the cyanhydrin.
Patent GB-507812-A (GB)
Title: Improvements relating to can closing machines
IPC: B21D51/32
Filed: 1938-07-15
Abstract: 507,812. Applying closures. AMERICAN CAN CO. July 15, 1938, No. 21024. Convention date, July 21, 1937. [Class 125 (ii)] A machine for inserting a closure element into a fibre container comprises means for inserting the closure element and further means for expanding the same whilst the container is moved continuously. The containers b, Fig. 2, with hinged closures e still open, are fed from the filling machine A to the continuously rotating turret head B, where they are guided under an inclined member 41 which presses the closure e into the aperture c. The closed containers are transferred to the mechanism C comprising seating-heads D, Fig. 5. The container is here supported on a resilient pad 58 in a pair of turret heads 46, and gripped by an arm 67 which is cam-actuated and is lowered when the turret has turned to the discharging position. The sealing head D, (see also Fig. 10), comprises members 103 slidably mounted in grooves, and embraced by a coil spring 108 ; the members 103 have fingers at their inner ends which engage the inner periphery of the fibre closure e; the members 103 are actuated by descent of the central rod 87 having a coned lower end, to expand the periphery of the cap e and seal it. The sealing-mechanism, Fig. 5, rotates continuously about, a central column 51 which carries a fixed cam member 97. The cam groove 96 descends at the sealing-position, thus lowering the cam slide 85; slidably mounted within the cam slide 85 is the sealing head D which is therefore lowered until projections thereon come into contact with the member 46, further lowering of the cam slide 85 then compresses the spring 91 and forces the rod 87 into the sealing-head D, thereby effecting sealing as described above. After sealing, the head D is raised, the retaining arm 67 swung clear, and the container discharged by guide rails 124, 126, Fig. 2, by the star wheel 115 on to an endless conveyer belt 131 for inspection and delivery. Specification 470,098 is referred to.
Patent GB-722324-A (GB)
Title: Improvements in the production of cast iron
IPC: C21C1/10
Filed: 1951-09-06
Abstract: A process for the production of spheroidal graphite cast iron comprises adding to molten cast iron, containing more than 4 per cent carbon and less than 1 per cent silicon, a substance promoting the formation of spheroidal graphite to produce an iron of a hypereutectic structure.  The spheroidal graphite promoting substance may be calcium, or magnesium-silicon alloy and/or cerium mischmetal, and may be introduced into the melt with the exclusion of air, e.g. it may be introduced into the bottom of a ladle in a container.  The iron produced may be annealed to give a tensile strength of 100 kg. per sq. mm.
Patent GB-884372-A (GB)
Title: Improvements in trolleys, trucks and like devices for conveying articles
Inventor: BUSH FREDERICK JOHN
IPC: B65G1/07
Filed: 1958-07-02
Abstract: 884,372. Hand trucks. BUSH & SONS Ltd., F. Oct. 2, 1959 [July 2, 1958], No. 21175/58. Class 108(1). A hand truck has two wheeled end frames held in spaced relationship by longitudinals 1 and a sliding platform 2 is suspended on resilient straps 5 to maintain a constant loading height. A fabric liner 3 may be provided.
Patent GB-1455554-A (GB)
Title: 2,2-bis-hydroxymethyl alkane sulphonates
IPC: C08K5/42
Filed: 1975-05-19
Abstract: 1455554 Dyeable polyesters BAYER AG 19 May 1975 [31 May 1974] 21217/75 Heading C3R [Also in Division C2] Dyeable copolymers contain a proportion of a comonomer of formula where R is C 1-5  alkyl and M is H, alkali metal or alkaline earth metal. Specific polymers are prepared from dimethyl terephthalate, ethylene glycol and such a comonomer.
Patent GB-137350-A (GB)
Title: An improved electric bell or buzzer
IPC: G10K1/064
Filed: 1919-06-04
Abstract: 137,350. Honor, C. W. H. June 4,1919. Bell-operating mechanism, electric. - In an electric bell 6f the kind having an armature oscillated by pairs of electro-magnets, one pair is arranged in series and the other pair in parallel, and the current is switched on and off the pair in parallel by the rocking of the armature. As shown, the rocking armature d carries a pair of hammers and makes and breaks the circuit of the coils g arranged in parallel.
Patent GB-1468614-A (GB)
Title: Hydraulic brake master cylinder
IPC: B60T11/22
Filed: 1975-05-19
Abstract: 1468614 Master cylinders BENDIX CORP 19 May 1975 [20 June 1974] 21305/75 Heading F2F A master cylinder assembly comprises a housing 12 with a bore 14 and apertures 28, 30 extending through the housing and communicating with the bore, a vessel or reservoir 32 holding separated fluid quantities and having extensions 34, 36, 85 circumscribing the apertures and a manifold 86 including a tubular member 88 having bosses 92, 94, 96 extending therefrom to be capable of engagement each with a corresponding extension and means for fastening the bosses to the extensions. The manifold 86 which is of rubber or plastic is connected by means of plugs 38, 40, 82 received within recesses 98, 100, 102 of bosses 92, 94, 96 and screwthreadedly attached to the extensions 34, 36, 84, fluid being fed from a power-steering pump to a connection 90.
Patent GB-399633-A (GB)
Title: Improvements relating to apparatus for delivering liquids into liquid streams
IPC: C02F1/68
Filed: 1932-07-28
Abstract: 399,633. Mixing fluids in flow. UNITED WATER SOFTENERS, Ltd. and MARIGNY, H. G., Aldwych House, Aldwych, London. July 28, 1932, No. 21339. [Class 86.] In apparatus as described in Specification 356,796 for adding proportionate quantities of reagent to a stream of liquid in which a pressure difference in the stream is used to force the reagent, through the medium of a cushion of air, into the stream, the reagent is contained in an open-topped vessel. The apparatus is used for water softening. The main stream passes through a pipe 3 in which is a constriction 4 by means of which the pressure difference is created. The reagent is contained in the vessel 5 mounted within a closed container 1, and is discharged therefrom, through the pipe 8, into the main stream, by the entrance of liquid through the pipe 2 into the container 1 compressing the air in the upper part of the container. The flow of liquid through the pipe 2 is shut off when the container 1 is nearly full by means of a ball valve 11. The reagent is mixed in a vessel 15 to which water is led by a pipe 14, the mixture being drawn into the vessel 5 by draining the container through a cock 17 after opening the valve 19.
Patent GB-1284012-A (GB)
Title: Ozonolysis of steroids
IPC: C07C59/74
Filed: 1970-05-04
Abstract: 1284012 Ozonolysis of 2-hydroxy-3-oxo- #<SP>1,4</SP>-steroids G D SEARLE & CO 4 May 1970 [5 May 1969] 21343/70 Headings C2C and C2U A-nor-1,2-seco-steroid aldehydo acids of the partial formula (wherein R is an optionally substituted methyl group) which are in equilibrium with the corresponding lactols of the formula are prepared by ozonolysis of corresponding 2- hydroxy - 3 - oxo - #<SP>1</SP>'<SP>4</SP>-steroids at - 78‹ to + 30‹ C. until at least one equivalent of ozone is absorbed. Specified products are 6#,19-epoxy- 17# - hydroxy - 1 - oxo - 1,2 - seco - A - norandrost-3-en-2-oic acid; 1,20-dioxo-1,2-seco-A- nor - pregn - 3 - en - 2 - oic acid; and 1 - oxo- 1,2 - seco - A - nor - cholest - 3 - en - 2 - oic acid. The products may be reduced, e.g. with alkali metal borohydrides, to give the corresponding 2 - oxa - 3 - oxo - #<SP>4</SP> - steroids, e.g. 2 - oxacholest- 4 - en - 3 - one, a hypocholesterolemic agent, and 6#,19 - epoxy - 17# - hydroxy - 2 - oxaandrost-4-en-3-one. This last-named compound may subsequently be acetylated to give 6#,19- epoxy - 17# - acetoxy - 2 - oxa - androst - 4 - en- 3-one, this may be reduced with zinc dust and cupric acetate in acetic acid to give 17#-acetoxy- 19 - hydroxy - 2 - oxa - androst - 5 - en - 3 - one, this may be oxidized with chromic acid in acetone to give 17#-acetoxy-10#-carboxy-2-oxaestr-5-en-3-one and this may be decarboxylated by heating in aqueous pyridine to give 17#- acetoxy - 2 - oxa - estr - 5(10) - en - 3 - one, an anabolic agent. Another named product of the alkali metal borohydride reduction process is 20- hydroxy-2-oxa-pregn-4-en-3-one which on oxidation gives 2-oxapregn-4-ene-3,20-dione, a progestational agent. 2 - Hydroxy - 3 - oxo - #<SP>1</SP>'<SP>4</SP> - steroids used as starting materials are prepared inter alia by oxygenation of the corresponding 2-unsubstituted-3-oxo-#<SP>4</SP>-steroids or their analogues containing a saturated A ring and a 5-substituent which is easily removable to form a #<SP>4</SP>-double bond. 6#,19 - Epoxy - 2,17# - dihydroxyandrosta- 1,4-dien-3-one is prepared from 5α-acetoxy- 17# - benzoyloxy - 6#,19 - epoxyandrostan - 3- one by this method. 2 - Hydroxyoholesta - 1,4 - dien - 3 - one is prepared by reacting cholest-4-en-3-one with ethyl formate to give 2-hydroxymethylene-cholest-4-en- 3-one and ozonolysing this. 5α - Acetoxy - 17# - benzoyloxy - 6#,19 - epoxyandrostan-3-one is prepared from 3#,5α- diacetoxy - 6#,19 - epoxyandrostan - 17 - one via 6#,19 - epoxyandrostane - 3#,5α,17# - triol 3,5 - diacetate, 6#,19 - epoxyandrostane - 3#,5α, 17# - triol 3,5 - diacetate 17 - benzoate and 6#,19 - epoxyandrostane - 3#,5α,17# - triol 5- acetate 17-benzoate.
Patent GB-726391-A (GB)
Title: Improvements relating to electric batteries
Inventor: SCHLOTTER WILLIAM JAMES
IPC: H01M6/38
Filed: 1953-08-04
Abstract: 726,391. Batteries. ELECTRIC STORAGE BATTERY CO. Aug. 4, 1953 [Oct. 27, 1952], No. 21445/53. Class 53. The electrolyte of a battery is contained in a sealed receptacle 14 enclosed in the upper part of the battery casing, a wetting agent being contained in one or more separate sealed receptacles 25, 26 as shown in Fig. 4. When the battery is required for use the bottoms of the receptacles 14, 25, 26 are opened and for this purpose explosive charges 16, 16a may be provided in tubes 17, 18. Fig. 5 shows a modification in which the receptacle 14c for the wetting agent is formed in a corner of the receptacle 14. Fig. 2 shows a further modification in which the wetting agent is contained in a sealed tube 15 located below the bottom of the receptacle 14, the walls of which are extended to form a compartment open at the bottom. The tube 15 is held in place by spacer blocks 20 and adhesive strips 21. The battery may have electrodes of silver and zinc, the electrolyte in the receptacle 14 being a solution of potassium hydroxide. The wetting agent may contain cresylic acid, oleate or laurate compounds or an alkyl polyoxyethylene glycol ester. Instead of explosive charges for rupturing the containers 14, 15, &c. solenoids may be used for delivering hammer blows or devices for piercing the container walls may be used.
Patent GB-988360-A (GB)
Title: Improvements in or relating to cartons
Inventor: HEAD ALEC JAMES
IPC: B65D5/36
Filed: 1961-06-14
Abstract: 988,360. Cartons. PEMBROKE CARTON & PRINTING CO. Ltd. June 12, 1962 [June 14, 1961; Sept. 29, 1961], Nos. 21541/61 and 35281/61. Heading B8P. A carbon formed from a single blank having creases 13 in the end walls 11 whereby the end walls may be folded to lie on the base 10, or alternatively folded outwardly to lie in line with the base, and the walls 15 fold automatically with the folding of the walls 11 has portions 14 which engage flaps 12 to prevent the end wall folding outwardly after erection. The horizontal limbs of the flaps 12 are glued to the end walls 11 whereas the vertical limbs are free. As shown in Fig. 5, a lid 18 may be provided on one side wall 15 and extensions 17 on the walls 11 fold in to form dust flaps. An impact adhesive may be used.
Patent GB-1345849-A (GB)
Title: Indoanilines
Inventor: KALOPISSIS G
IPC: A61Q5/10
Filed: 1972-05-09
Abstract: 1345849 Indoaniline dyes L'OREAL 9 May 1972 [10 May 1971] 21541/72 Heading C4P The invention comprises indoaniline dyes of the general formula wherein Z is amino, acylamino or hydroxyl, each of R 5 , R 6  and R; are H or alkyl or alkoxy containing 1 to 6 carbon atoms, R 8  and R 9  are H or alkyl containing 1 to 6 carbon atoms, optionally substituted by a hydroxyl, carbamoyl, acylamino or piperidinyl group, or H 8  and R 5  or R 9  and H 6  together may complete a dihydrooxazine or pyrroline ring with the proviso that at least two of the radicals H 5 -H 9  are other than hydrogen if Z is -NH 2 , salts of these compounds with inorganic and organic acids, zinc chloride double salts and tautomers thereof. They are prepared by condensing a compound of the general formula wherein R 5 -R 9  and Z are as above, or a salt thereof with (a) p-amino-phenol or a salt thereof in an aqueous, aqueous-alcoholic or aqueous acetone medium at -5‹- + 40‹ C. in presence of an oxidizing agent, (b) benzoquinone-N- chloroimide in aqueous, aqueous-alcoholic or aqueous-acetone at 0-40‹ C., optionally converting the indoaniline formed into a salt or (c) with p-nitrosophenol in an alcoholic medium in presence of zinc chloride at reflux temperature to form the zinc chloride double salt. The dyes are used optionally in admixture with azo, anthraquinone, nitrobenzene, azine, oxazine, indophenol, indamine or indoaniline dyes to dye keratinic fibres, e.g. human hair, the compositions optionally being in the form of a wavesetting lotion by addition of a resin.